WASHINGTON, DC - MAY 20: U.S. first lady Michelle Obama leaves after delivering remarks during the Elizabeth Dole Foundation?s 2015 Hidden Heroes Coalition Summit: Progress and Promise at the Ronald Reagan Building and International Trade Center May 20, 2015 in Washington, DC. leaders from the Department of Veterans Affairs, Congress, corporations, nonprofits and faith communities gathered to honor military and veteran caregivers from across the country. (Photo by Chip Somodevilla/Getty Images)